diff options
| author | Mukul Joshi <mukul.joshi@amd.com> | 2023-01-31 11:23:50 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 09:55:35 -0400 |
| commit | f4d8b6f5c61ab5e98258bd0072d733741c76bd8d (patch) | |
| tree | 13a16b9f3250d473d739c42af7139786bf3e53bf /drivers/gpu | |
| parent | 01ef47477d05b784ab6ac26fa6878987eda436f1 (diff) | |
| download | lwn-f4d8b6f5c61ab5e98258bd0072d733741c76bd8d.tar.gz lwn-f4d8b6f5c61ab5e98258bd0072d733741c76bd8d.zip | |
drm/amdkfd: Enable SVM on Native mode
This patch enables SVM capability on GFX9.4.3 when
run in Native mode. It also sets best_prefetch and
best_restore locations to CPU as there is no VRAM.
Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Acked-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 8 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_svm.h | 3 |
2 files changed, 10 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c index 2b79849ddd30..cf354f9e4285 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c @@ -2543,6 +2543,9 @@ svm_range_best_restore_location(struct svm_range *prange, return -1; } + if (node->adev->gmc.is_app_apu) + return 0; + if (prange->preferred_loc == gpuid || prange->preferred_loc == KFD_IOCTL_SVM_LOCATION_SYSMEM) { return prange->preferred_loc; @@ -3256,6 +3259,11 @@ svm_range_best_prefetch_location(struct svm_range *prange) goto out; } + if (bo_node->adev->gmc.is_app_apu) { + best_loc = 0; + goto out; + } + if (p->xnack_enabled) bitmap_copy(bitmap, prange->bitmap_aip, MAX_GPU_INSTANCE); else diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.h b/drivers/gpu/drm/amd/amdkfd/kfd_svm.h index 5116786718b6..7515ddade3ae 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.h @@ -200,7 +200,8 @@ void svm_range_list_lock_and_flush_work(struct svm_range_list *svms, struct mm_s /* SVM API and HMM page migration work together, device memory type * is initialized to not 0 when page migration register device memory. */ -#define KFD_IS_SVM_API_SUPPORTED(dev) ((dev)->pgmap.type != 0) +#define KFD_IS_SVM_API_SUPPORTED(dev) ((dev)->pgmap.type != 0 ||\ + (dev)->adev->gmc.is_app_apu) void svm_range_bo_unref_async(struct svm_range_bo *svm_bo); |